19208189

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 26664960

約数和(自身を除く): 7456771

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 619, 1001, 2387, 2821, 4333, 4433, 6809, 8047, 19189, 31031, 47663, 56329, 88517, 134323, 211079, 249457, 619619, 1477553, 1746199, 2744027, 19208189]

約数ペア:

[(1, 19208189), (7, 2744027), (11, 1746199), (13, 1477553), (31, 619619), (77, 249457), (91, 211079), (143, 134323), (217, 88517), (341, 56329), (403, 47663), (619, 31031), (1001, 19189), (2387, 8047), (2821, 6809), (4333, 4433)]